diff options
| author | Pravin B Shelar <pshelar@nicira.com> | 2013-03-08 15:12:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-09 16:09:20 -0500 |
| commit | 4f3ed9209f7f75ff0ee21bc5052d76542dd75b5f (patch) | |
| tree | bfdce03ed40959fc65a12d6d7ecb1172967e5b28 /net | |
| parent | 8344bfc6008d1c7b8b541bb25de7dfacb2188b95 (diff) | |
ipip: capture inner headers during encapsulation
Allow IPIP to make use of tx-checksum offloading.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/ipip.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 18f535299ef..b50435ba0ce 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -483,11 +483,6 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) if (skb->protocol != htons(ETH_P_IP)) goto tx_error; - - if (skb->ip_summed == CHECKSUM_PARTIAL && - skb_checksum_help(skb)) - goto tx_error; - old_iph = ip_hdr(skb); if (tos & 1) @@ -572,6 +567,13 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) old_iph = ip_hdr(skb); } + if (!skb->encapsulation) { + skb_reset_inner_headers(skb); + skb->encapsulation = 1; + } + if (skb->ip_summed != CHECKSUM_PARTIAL) + skb->ip_summed = CHECKSUM_NONE; + skb->transport_header = skb->network_header; skb_push(skb, sizeof(struct iphdr)); skb_reset_network_header(skb); @@ -599,7 +601,6 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) iph->ttl = old_iph->ttl; nf_reset(skb); - skb->ip_summed = CHECKSUM_NONE; pkt_len = skb->len - skb_transport_offset(skb); err = ip_local_out(skb); |